Bornean Peacock-Pheasant vs Crested Partridge
Polyplectron schleiermacheri compared with Rollulus rouloul
Side-by-Side Comparison
| Attribute | Bornean Peacock-Pheasant | Crested Partridge |
|---|---|---|
| Scientific Name | Polyplectron schleiermacheri | Rollulus rouloul |
| Order | Galliformes | Galliformes |
| Family | Phasianidae | Phasianidae |
| Conservation Status | Endangered | Vulnerable |
| Length | — | — |
| Wingspan | 37.4 cm (14.7 in) | 27.2 cm (10.7 in) |
| Weight | 512.0 g (18.06 oz) | 250.5 g (8.84 oz) |
| Diet | Ground forager in Bornean lowland forest; eats seeds, fruits, invertebrates, and small animals. | Forages on floor of Southeast Asian lowland rainforests for seeds, fallen fruits, and invertebrates. Scratches … |
| Clutch Size | 1 | 4-6 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Bornean Peacock-Pheasant
Soft, plaintive 'kwii-kwii' whistle; rarely heard from Bornean lowland peat swamp. Poorly documented vocally. Alarm presumably a sharp 'kek'. Males produce soft calls during ocellated tail display.
Crested Partridge
High-pitched, thin whistled 'seee' repeated persistently; metallic and insect-like. Males call from forest floor, rarely seen. Alarm is an explosive low grunt followed by rapid wing beats.
Geographic Range & Migration
Bornean Peacock-Pheasant
Endemic to Borneo; resident of lowland and hill forest in Sabah, Sarawak, and Kalimantan; one of the rarest pheasants.
Crested Partridge
Resident in lowland and foothill rainforest of Myanmar, Thailand, Malaysia, Sumatra, and Borneo. Found below 1,500 m.
Conservation Status
Bornean Peacock-Pheasant
Crested Partridge
How to Tell Them Apart
Bornean Peacock-Pheasant
Male brown with dense small iridescent blue-green ocelli across wings and tail; reddish-pink orbital skin; white speckled face. Female similar but smaller; ocelli reduced and duller; brown overall.
Crested Partridge
Male is dark glossy green-black with vivid red-crimson erectile crest; red orbital skin; chestnut wings. Female is entirely bright emerald green with brown wings, red legs, and grey head; among …
About These Birds
Bornean Peacock-Pheasant
One of the rarest Phasianidae pheasants (~512 g), endemic to lowland primary forests of Borneo. Males have brown plumage densely patterned with iridescent blue-green ocelli. Rarely observed; forages on seeds and invertebrates. Endangered due to rapid destruction of Bornean lowland forest; few confirmed recent records.
Crested Partridge
A small partridge (~250 g) of family Phasianidae, males with vivid crimson crest and iridescent green plumage. Found in lowland tropical rainforests of Southeast Asia including Thailand, Malaysia, Sumatra, and Borneo. Forages on the forest floor for fallen seeds, fruits, and invertebrates. Vulnerable; dependent on primary lowland forest, heavily impacted by deforestation and palm oil expansion.